The increasing prevalence of mental illness among parents always represents a stressor affecting the biopsychosocial development of a child. However, due to varying inherent resilience factors, not all children are affected to the same extent. The presence of evidence-based resilience factors is able to minimise or prevent the adverse effects associated with the parental disorder. Fostering an attachment to a healthy adult--including professionals in the social field--and providing information about the disorder are regarded as two important preventive factors. The need for specific individualised intervention programmes for this group of forgotten children is highlighted, and a specific method of assessment is presented.